If you're using the Winampplayer you sometimes might get warning-popups.
They contain a message telling a repeating script is running on Winamp,
whether you want to stop it or not.

What is the matter :

-in the big lower part of Winamp a browser is located, able to present and follow artist-information.
It might contain ads, sometimes having bad scripts.
Repeatedly running, slowing down your internet and pc, flooding the buffer.

How to solve it :

-pull open the video & info-frame, using the small button on right bottom-side of Winamp.
-look at lefthand column, click with left mousebutton on 'Local Media' .
-reduce the big winampframe, by the same small button on righthand-bottom of Winamp.
-ready.